Sorrento Therapeutics (NASDAQ:SRNE), a clinical-stage biopharmaceutical company, saw its shares rise more than 10% this week. The stock opened at $8.36 on Monday and rose to a high of $9.63 on Wednesday. The stock is up more than 32% this year and has been somewhat volatile in the past 52 weeks, with a high of $17.25 and a low of $5.17, both set last summer.